thetechconspiracy/CharacterLCDController

Controls a character LCD using a Raspberry Pi

CharacterLCDController

Requires the pi4j library: http://pi4j.com/download.html

Building

1. Install the pi4j library: sudo apt install pi4j
2. In the src/charlcdcontroller directory, compile the program with: pi4j -c *.java
3. Run the program with pi4j -r CharLCDController

Pinout

GPIO Pin	LCD Pin	Name in code
+5 VDC	2, 15	N/A
GND	1, 16	N/A
00	6	enable
01	4	register
02	2	readWrite
03	7	dataBus[0]
04	8	dataBus[1]
05	9	dataBus[2]
06	10	dataBus[3]
07	11	dataBus[4]
21	12	dataBus[5]
22	13	dataBus[6]
23	14	dataBus[7]

Please note that Pi4J uses the GPIO pinout used by WiringPi:

26 pin header: http://pi4j.com/pins/model-a-rev2.html#P1_Pinout_26-pin_Header

40 pin header: http://pi4j.com/pins/model-b-plus.html#J8_Pinout_40-pin_Header

CLI Parameters:

• -g: Force GUI
• -c: Force CLI
• -d: Debug mode (does not require Pi4J or a Raspberry Pi, used for debug purposes only). Requires a terminal for full functionality